Box gutter
A box gutter, parallel gutter, or trough gutter is a rain gutter
on a roof usually rectangular in
shape; it may be lined with EPDM rubber,
metal, asphalt, or
roofing felt, and may be
concealed behind a parapet or the
eaves, or in a roof valley.
Box gutters are
essentially placed between parallel surfaces,
as in a valley between parallel
roofs or at the junction of a roof and a parapet wall. They
should not be
confused with so-
called valley gutters or valley flashings which occur at the
non-parallel intersection of roof
surfaces, typically at right angled internal
corners of pitched
roofs. Provision is made in the
design of the gutter to have
a rain flow to the outlet with a
maximum slope of 1:200 and a
minimum of 1:400.
4:02 ص
شارك: